TY - GEN AU - Leo J Waldron C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1940-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.BMS.49 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1940 TI - Metallic roofing for low-cost house construction: ER -